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Matches 1 - 50 out of 32,725

Document Document Title
WO/2018/009992A1
The present invention relates to a method for protecting transformers against inner faults. In short, the method disclosed in the present invention is aimed at increasing the detection sensitivity of inner faults in devices, mainly power...  
WO/2018/011150A1
A control system (1) is disclosed for an electric actuator comprising an electric motor (4),an external supply (7) of electric energy, an energy storage device (2) and a first motor control module (12) which controls the supply of energy...  
WO/2018/009990A1
The present invention relates to a method for protecting transformers against internal faults. In summary, the method disclosed in the present invention is intended to increase the detection sensitivity of internal faults in equipment, p...  
WO/2018/012061A1
A power storage device 10 is provided with: a case 11 in which an electrode assembly 12 is housed; first and second electrode terminals 21, 31 having mutually different polarities, the first and second electrode terminals 21, 31 being pr...  
WO/2018/011364A2
The invention relates to a fuse (6) for arranging in an electrical supply line (5) of a consumer (4), said fuse (6) comprising a fuse element and a retainer for said fuse element. A means (8) is provided for modifying the characteristic ...  
WO/2018/011365A1
The invention relates to a battery system (1), in particular for a motor vehicle, comprising a battery having at least one of battery cell and/or rechargeable battery cell (3). A consumer (4) is electrically connected to the battery (2) ...  
WO/2018/012916A1
The present invention relates to a system and method for protecting an inter-battery circuit through which a vehicle lead-storage battery and a lithium polymer battery are connected to each other, wherein a counter-electromotive force ge...  
WO/2018/007857A1
A method and system is provided for locating a fault in a mixed power transmission line. The method is implemented by an Intelligent Electronic Device (IED) of the mixed line. The IED detects a travelling wave from one or more signals re...  
WO/2018/006515A1
Main circuit grounding protection method for a direct-current electric transmission diesel locomotive. The method comprises: transmitting a signal DJ_IN of a grounding relay DJ and signals dI1-dIn of leakage current sensors S1-Sn to a mi...  
WO/2018/006516A1
An AC-DC-AC circuit grounding protection method according to the present invention comprises: setting an electrical current threshold ΔI and voltage thresholds ΔU1, ΔU2, ΔU3; when the magnitude of a vector sum I is higher than the el...  
WO/2018/005066A1
Techniques for enabling multi-pack and component connectivity detection are provided. In some configurations, individual PCMs can test the connectivity between components of a device without the need to operate the components. For exampl...  
WO/2018/002075A1
The invention relates to a method and to a device (Steu) for recognizing a force (F) exerted by a part (Fen; Stz) which can be adjusted electrically (schli, off) by an electric motor (Mot), in particular a seat (Stz) or closing part (Fen...  
WO/2018/003376A1
The present invention addresses the problem of providing a protection circuit and a wiring device capable of protecting a switch portion when an AC power supply is connected between both ends of the switch portion without interposing a l...  
WO/2018/003125A1
This power interrupting device interrupts power supplied to a circuit from a power supply. The power interrupting device includes a switch circuit, a first detector, a second detector, and a control device. The switch circuit is bifurcat...  
WO/2018/001848A1
The invention relates to a method for testing a multi-phase connection cable (100) which connects a bridge circuit (104) to an electric motor (102), the method comprising a switching step, a measuring step and a detecting step. In the sw...  
WO/2018/005509A1
A rapid pressure rise detection and management system that detects internal pressure changes in a transformer. The rapid pressure rise detection and management system communicates with one or more pressure sensors attached to a tank of t...  
WO/2018/005520A1
An electrical system includes an operation MEMS switch operable in on and off states to enable and disable current flow to a load and a fault interruption MEMS switch positioned in series with the operation MEMS switch. The fault interru...  
WO/2018/003029A1
An alternating-current electric vehicle (3) is provided with a plurality of main transformers (TR1, TR2) electrically connected in parallel to wiring, a plurality of circuit breakers (CB1, CB2) respectively connected between the wiring (...  
WO/2018/002501A1
A method for generating a short-circuit by a power supply device (1) comprising electrical components (8) for causing the triggering of a protection element (6) connected between a load (3) and said power supply device (1). In response t...  
WO/2018/001515A1
A multilevel converter for converting between AC and DC comprises a cell (HBA), which comprises an energy storage element (C), a first branch of series-connected switching units(S1, S2) in parallel with the energy storage element, each s...  
WO/2017/221697A1
A power supply control device (10) wherein a drive circuit (27) switches a semiconductor switch (20) on or off and thereby controls the supplying of power through the semiconductor switch (20). A current circuit (21) draws current from t...  
WO/2017/220465A1
In order to make it possible to test a monitoring device with travelling wave capture in the field, as are also installed in real operation, provision is made for the temporal profile of a low-frequency fault voltage (UF(t)) and/or the t...  
WO/2017/219491A1
A battery voltage protection circuit. When a battery voltage reaches two interval voltages of a voltage determination unit, a corresponding voltage determination is made, and a low-voltage determination switch (V1), a high-voltage determ...  
WO/2017/222910A1
A system is provided for preventing battery drain of a motorized vehicle and methods for using the same. The system may include a voltage sense module, a current sense module, a relay module and an optional overcurrent indicator module. ...  
WO/2017/215335A1
Disclosed are an IGBT short-circuit protection circuit (P) and method, an IGBT driver and an IGBT circuit. The IGBT short-circuit protection circuit (P) comprises: a driving current detection unit (1) used for detecting a driving current...  
WO/2017/218558A1
Phase selection for traveling wave fault detection systems is disclosed herein. Intelligent electronic devices (IEDs) may be used to monitor and protect electric power delivery systems by detecting and acting upon traveling waves. A phas...  
WO/2017/212876A1
A system power supply circuit 100 receives input voltage VIN, and supplies power supply voltage to a plurality of load circuits 204 including a microcomputer 206. A plurality of power supply circuits 102 correspond to the plurality of lo...  
WO/2017/208751A1
Provided is a configuration that can supply charging current from a generator to two power storage units and that, when an abnormality has occurred on the side of one power storage unit, can keep the abnormality from reaching the side of...  
WO/2017/202569A3
The invention relates to a primary-pulsed switching power supply (1) for converting an input voltage (Ue) into an output voltage (Ua), comprising at least: - a fuse (5) arranged in the circuit branch (2) on the primary side, which is des...  
WO/2017/202697A1
Disclosed is a method for recognizing motion impairment in a drive device (14), in which method a movably mounted element (15) is moved towards a target position (20) by means of an electric motor (16) whilst the drive device (14) is exp...  
WO/2017/203099A1
A method for detecting faults (4) in a three-phase electrical distribution network comprising determining a zero sequence current (21 C), a first phase current (21A) and a second phase current (21 B) at a location of the three-phase elec...  
WO/2017/201957A1
Disclosed are a protective device and method for a BMS power source loop, and an electric vehicle. The device comprises: a PTC thermistor (10), wherein the PTC thermistor is connected in series in a BMS power source loop; a controllable ...  
WO/2017/201734A1
Embodiments of the present invention provide a battery protection board, a battery, and a mobile terminal. The battery protection board comprises: protection circuits located in a charging/discharging loop of a mobile terminal; and detec...  
WO/2017/202165A1
A method of identifying a fault in a direct current (DC) microgrid power line, a device, and a DC microgrid system. The method comprises: acquiring a power line voltage in a DC microgrid; acquiring a branch current of any branch in the D...  
WO/2017/202327A1
A star-delta switching starter for a three-phase alternating-current motor comprises three three-pole air circuit breakers, including a main switch circuit breaker (1), a star circuit breaker (2), and a delta circuit breaker (3). The mai...  
WO/2017/202349A1
A battery protection board, a battery and a mobile terminal are provided. A battery protection board includes a protection circuit and a detection circuit. The protection circuit is configured to be coupled to a charge and discharge circ...  
WO/2017/199719A1
The electric powered work machine in one aspect of the present disclosure is provided with: a main conduction path; a drive unit provided with a motor and at least one first semiconductor switching element; a control unit; a bypass condu...  
WO/2017/199357A1
This electronic control device has multiple system circuits, all of which are provided with mutually independent power shutdown means, such that in response to the detection of an abnormality, an abnormal system circuit is shut down by t...  
WO/2017/195010A1
An external safety device to avoid the explosion of batteries used in cellular phones aimed at the safety of consumers. The safety gadget continuously monitors the external temperature, current flow, and position change of the cell phone...  
WO/2017/196224A1
A method and a device for disconnection of faults in an electric network comprising a plurality of stations (14; 34; 38) connected in a loop, comprising feeding the loop from at least two feeding points(A, B) from a power source (17),ear...  
WO/2017/190608A1
The present invention relates to a method and system for fault positioning and recovery of a voltage source converter. The method comprises: locking a converter station when it is detected that an alternating-current voltage contains a z...  
WO/2017/192363A1
An electronic device is configured with sub-assemblies including a main logic board, flexible printed circuit, and dual battery packs that are assembled together with electrical connectors to enable power from the battery packs to flow o...  
WO/2017/186436A1
The invention relates to a system for actively short-circuiting phases (U, V, W) of an inverter (1), wherein the inverter (1) is provided with power semiconductor switches (5, 5A, 5B) for applying an electrical current at the phases (U, ...  
WO/2017/188073A1
In order to easily detect a disconnection in a lowest-order voltage detection line when a voltage detection circuit for detecting the respective voltage of a plurality of serially connected cells is made redundant, the operation power su...  
WO/2017/187785A1
In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit 71 has: a threshold value generation unit 130 that, in accordance with a threshold value ...  
WO/2017/189418A1
An elevator door operator may comprise a drive connected to a motor for opening and closing elevator doors. The drive may include a power supply control switch, a rectifier for converting AC from a power source to DC, a DC bus with a cap...  
WO/2017/185884A1
Disclosed is a self-activating circuit of a battery protection system. The self-activating circuit comprises an N-type MOS transistor (Q4), a PNP-type transistor (Q2), resistors (R20, R21, R24, R25), and a capacitor (C2). A first termina...  
WO/2017/186456A1
The invention relates to an electric protective device (1). Said protective device (1) comprises: a grounding switch (3) that includes two electric contact terminals (7, 9) and at least one movable contact element (11, 13) for establishi...  
WO/2017/183437A1
Provided is an automotive power supply device in which it is possible to suppress the occurrence of a grounding fault current. The automotive power supply device is provided with a first diode and a second diode. The first diode is provi...  
WO/2017/181927A1
A direct current switch-off device comprises an on-state current branch circuit and a current commutating and breaking unit which are connected in parallel. The on-state current branch circuit comprises a mechanical switch (S) and a curr...  

Matches 1 - 50 out of 32,725